Status of Ultra-High Concentrator Multijunction Solar Cell Development at IES-UPM.

Rey-Stolle Prado, Ignacio and Algora del Valle, Carlos and Barrigón Montañés, Enrique and Garcia Tabares Valdivieso, Elisa and García Vara, Iván and Espinet González, Pilar (2010). Status of Ultra-High Concentrator Multijunction Solar Cell Development at IES-UPM.. In: "25th European Photovoltaic Solar Energy Conference and Exhibition and 5th World Conference on Photovoltaic Energy, 25th EU PVSEC/5th WCPEC 2010", 06/09/2010 - 10/09/2010, Valencia, España. ISBN 3-936338-26-4.

Description

Title: Status of Ultra-High Concentrator Multijunction Solar Cell Development at IES-UPM.
Author/s:
  • Rey-Stolle Prado, Ignacio
  • Algora del Valle, Carlos
  • Barrigón Montañés, Enrique
  • Garcia Tabares Valdivieso, Elisa
  • García Vara, Iván
  • Espinet González, Pilar
Item Type: Presentation at Congress or Conference (Article)
Event Title: 25th European Photovoltaic Solar Energy Conference and Exhibition and 5th World Conference on Photovoltaic Energy, 25th EU PVSEC/5th WCPEC 2010
Event Dates: 06/09/2010 - 10/09/2010
Event Location: Valencia, España
Title of Book: Proceedings of the 25th European Photovoltaic Solar Energy Conference and Exhibition and 5th World Conference on Photovoltaic Energy, 25th EU PVSEC/5th WCPEC 2010
Date: 2010
ISBN: 3-936338-26-4
Subjects:
Freetext Keywords: III-V semiconductors, concentrator cells, multijunction solar cell.
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Electrónica Física
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

After the successful implementation of a record performing dual-junction solar cell at ultra high concentration, in this paper we present the optimization of key aspects in the transition to a triple-junction device, namely the hetero nucleation of III-V structures onto germanium substrates. This optimization is based on in-situ RAS measurements during the MOVPE growth of the triple-junction solar cell structure and subsequent AFM analysis. The correlation between RAS and AFM allows detecting which RAS features correlate with good morphology and low RMS roughness. TEM analysis confirms that the quality of the triple-junction structures grown is good, revealing no trace of antiphase disorder, and showing flat, sharp and clear interfaces. Triple-junction solar cells manufactured on these structures have shown a peak efficiency of 36.2% at 700X, maintaining an efficiency over 35% from 300 to 1200 suns.

More information

Item ID: 8220
DC Identifier: http://oa.upm.es/8220/
OAI Identifier: oai:oa.upm.es:8220
Official URL: http://www.photovoltaic-conference.com/conference/conference-proceedings.html
Deposited by: Memoria Investigacion
Deposited on: 04 Aug 2011 08:10
Last Modified: 20 Apr 2016 17:05
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